Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver

Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver

Brand: Cisco | Category: Transceivers & Cables

SKU: QSFP-DD-400G-ZR-S | Part #: QSFP-DD-400G-ZR-S | MPN: QSFP-DD-400G-ZR-S

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About the Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver

Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver

The Cisco QSFP-DD-400G-ZR-S is a high-performance coherent optical transceiver engineered for long-distance, ultra-high-capacity network deployments. This 400ZR module delivers 400 Gigabit per second throughput over extended metropolitan and regional distances, making it ideal for service providers, hyperscalers, and enterprise backbone infrastructure requiring maximum reach without regeneration.

Key Features

  • 400G Throughput: Delivers 400 Gbps per lane for maximum bandwidth efficiency
  • Coherent DWDM Technology: Enables dense wavelength division multiplexing for spectrum optimization and carrier-grade transmission
  • Extended Range: 400ZR specification supports ultra-long-reach connectivity over single-mode fiber infrastructure
  • QSFP-DD Form Factor: Compact, hot-swappable module design simplifies deployment and reduces footprint in high-density switching environments
  • Interoperability: Standards-based implementation ensures compatibility with leading routing and switching platforms

Applications

The QSFP-DD-400G-ZR-S (MPN: QSFP-DD-400G-ZR-S) is suited for:

  • Data center interconnection (DCI) over regional distances
  • Long-haul backbone network expansion
  • Service provider metro and core transport
  • Enterprise WAN aggregation with minimal latency

Built to Cisco's enterprise-grade standards, this transceiver combines reliability, performance, and optical reach to meet the demands of next-generation network infrastructure.

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Technical Specifications

BrandCisco
CategoryTransceivers & Cables
SKUQSFP-DD-400G-ZR-S
Part NumberQSFP-DD-400G-ZR-S
ConditionNew
Data Rate400 Gbps
Form FactorSFP
ReachER (extended-reach 40 km)
Manufacturer Part NumberQSFP-DD-400G-ZR-S
Speed400GBase-ZR
Interface TypeQSFP-DD
Transmission MediumSingle-mode Fiber (SMF)
ModulationCoherent DWDM
Wavelength Tuning RangeITU grid (C-band)
Maximum Operating Distance40 km
Protocol400GBASE-ZR
Connector TypeQSFP-DD LC
Operating Temperature0–70°C
Power Consumption~8 W
Reach CategoryExtended-range coherent (ZR)

Frequently Asked Questions about Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver

What does the Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver do?

The Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.

What are the headline specs of the Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver?

Key specifications for the Cisco QSFP-DD-400G-ZR-S 400ZR Coherent DWDM Transceiver: new condition; data rate 400 Gbps; form factor SFP; reach ER (extended-reach 40 km); manufacturer part number QSFP-DD-400G-ZR-S; manufacturer Cisco; speed 400GBase-ZR. Manufacturer part number QSFP-DD-400G-ZR-S. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.